LENOVO LEGION 5 KEYBOARD NOT WORKING!!!!!!!

The keypad of my laptop is not working. It's kinda weird cuz the backlit is on and some function keys are working too ( the "fn+space" is working, "fn+f5" and "fn+f6" are also working ). It's just the other keys that are eating my brain.

I had already faced this problem once and tbh I completely forgot how I fixed it ( IDK maybe a few restarts or spamming every key ). I am pretty sure this is not a software/hardware problem. cuz as I said, I already had the very same problem.

( btw the keyboard drivers and bios, all of them are of the latest version )

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Please help. I am a comp sci student and I cannot carry my big a** keyboard to campus and other places all the time.